| Similarity | Rank | |
|---|---|---|
| xenix | 0.914 | 53595 |
| x-window | 0.913 | 33944 |
| iapx-86-based | 0.910 | 51691 |
| pa-risc | 0.909 | 37089 |
| mpx | 0.909 | 49934 |
| microkernel-based | 0.908 | 84462 |
| informix-gateway | 0.907 | 91940 |
| corp-motorola | 0.907 | 98979 |
| posix-compliant | 0.906 | 64621 |
| pc-dos | 0.905 | 76178 |
| odt | 0.904 | 54765 |
| svr4-based | 0.904 | 82341 |
| uniface | 0.903 | 48607 |
| pc-nfs | 0.903 | 37650 |
| r5000 | 0.901 | 80456 |
| saic | 0.901 | 90421 |
| shrinkwrap | 0.900 | 54508 |
| sinix | 0.900 | 63188 |
| pc-to-unix | 0.900 | 90794 |
| openvms | 0.899 | 31561 |
| ez-rpc | 0.897 | 81240 |
| xcelerated | 0.895 | 65915 |
| unix-like | 0.895 | 84794 |
| 3000 | 0.895 | 72338 |
| 700s | 0.894 | 59326 |